将Html.BeginForm与querystring一起使用 [英] Using Html.BeginForm with querystring

问题描述

我的网址看起来像这样:

My url looks like this:

customer/login?ReturnUrl=home

在登录视图中，我使用了这种模式的代码，效果很好.

In the login view, I have used this pattern of code which works fine.

@using(Html.BeginForm())
{
   ...
}

这神奇地生成了以下html

This magically generates following html

<form action="customer/login?ReturnUrl=home" method="post">

但是现在，我需要在表单中添加一个属性(例如，data-id="something").我怎样才能做到这一点?如果我没有任何查询字符串，我知道我可以做这样的事情:

But now, I need to add an attribute (e.g., data-id="something") in the form. How can I do that? If I don't have any query string, I know I can do something like this:

@using(Html.BeginForm(action, controller, FormMethod.Post, 
                      new { data_id="something" }))

但是不知道如何添加应该在html中的querystring:

But don't know how to add querystring which should be in html:

<form action="customer/login?ReturnUrl=home" method="post" data-id="something">

我考虑过直接使用<form>，但是不知道如何指定可变的querystring.而且我不知道如何使用Html.BeginForm实现它.任何提示将不胜感激.

I thought about using <form> directly but don't know how to specify querystring which is variable. And I have no idea how to achieve it with Html.BeginForm. Any tip would be appreciated.

解决方案:

目前，我将<form>与以下提示结合使用如何在View中获取当前的URL值.产生的视图看起来像

For now, I used <form> with following hint How to get current url value in View. The resulting view looks like

<form action="@Request.Url.PathAndQuery" data-id="something" method="POST">

但是，对此有一个BeginForm的重载方法会很好.

But it would be nice to have an overloaded method of BeginForm for this.

推荐答案

我想这并不能直接回答问题，但是为什么不只使用普通的旧表单标签呢?

I guess this doesn't directly answer the question, but why not just use a plain old form tag?

 <form action='customer/login?ReturnUrl=@Request.QueryString["ReturnUrl"]' method="post" data-id="something">

或者，您可以创建一个自定义的HtmlHelperExtension来呈现带有路径和查询字符串的表单.在此HtmlHelperExtension中，您可以遍历查询字符串值并填充routeValueDictionary，然后将其传递给Html.BeginForm构造函数.

Alternatively, you can create a custom HtmlHelperExtension that renders a form with path and querystring. In this HtmlHelperExtension you can iterate through your querystring values and populate the routeValueDictionary which you then pass to a Html.BeginForm constructor.

如果您不想要这样的可扩展性，则可以使用Html.BeginForm的重载构造函数，方法是: @Html.BeginForm("login", "customer", new {ReturnUrl = @Request.QueryString["ReturnUrl"]},FormMethod.Post, new {data-id="something"});

If you don't want something so extensible you can just use the overloaded constructor of Html.BeginForm using @Html.BeginForm("login", "customer", new {ReturnUrl = @Request.QueryString["ReturnUrl"]},FormMethod.Post, new {data-id="something"});

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